People who have just installed impact windows and doors notice their soundproofing qualities almost immediately. “I almost forgot I live under the airport path,” one customer recently told us.

These doors and windows also provide better security because they’re practically impossible to break. Doors and all windows within 30 feet of the ground must pass a “large missile test.” It is a test in which two nine-pound 2X4 lumber “missiles” are shot at them from 50 feet per second (34 mph).